[PATCH v2 0/6] Renesas R-Car DMAC fixes

[PATCH v2 0/6] Renesas R-Car DMAC fixes

[Laurent Pinchart]

Hello,

Here are a couple of fixes for the rcar-dmac driver. They're based on the next
branch of the dmaengine tree.

The first four patches fix driver bugs, while the last two work around two
hardware issues. Patch 5 works around a documented errata, while patch 6
handles a data corruption issue that was noticed during test but not yet
confirmed to be a hardware bug by Renesas. When more information about the
issue will be available a better fix could possibly be developed.

The patches are available at

	git://linuxtv.org/pinchartl/fbdev.git dma/upstream

Vinod, is there still time for a v3.20 pull request ?

Changes since v1:

- Don't needlessly replace spin_lock by spin_lock_irqsave in IRQ handlers

Cc: Vinod Koul <vinod.koul@intel.com>

Laurent Pinchart (6):
  dmaengine: rcar-dmac: Fix uninitialized variable usage
  dmaengine: rcar-dmac: Fix spinlock issues in interrupt
  dmaengine: rcar-dmac: Fix oops due to unintialized list in error ISR
  dmaengine: rcar-dmac: Allocate hardware descriptors with DMAC device
  dmaengine: rcar-dmac: Work around descriptor mode IOMMU errata
  dmaengine: rcar-dmac: Disable channel 0 when using IOMMU

 drivers/dma/sh/rcar-dmac.c | 137 ++++++++++++++++++++++++++-------------------
 1 file changed, 80 insertions(+), 57 deletions(-)

-- 
Regards,

Laurent Pinchart

Re: [PATCH v2 0/6] Renesas R-Car DMAC fixes

[Vinod Koul]

On Fri, Jan 30, 2015 at 02:00:07AM +0200, Laurent Pinchart wrote:
> Hello,
> 
> Here are a couple of fixes for the rcar-dmac driver. They're based on the next
> branch of the dmaengine tree.
> 
> The first four patches fix driver bugs, while the last two work around two
> hardware issues. Patch 5 works around a documented errata, while patch 6
> handles a data corruption issue that was noticed during test but not yet
> confirmed to be a hardware bug by Renesas. When more information about the
> issue will be available a better fix could possibly be developed.
> 
> The patches are available at
> 
> 	git://linuxtv.org/pinchartl/fbdev.git dma/upstream
> 
> Vinod, is there still time for a v3.20 pull request ?
Since this is fixes I was trying to merge them before I send to Linus in next
few days, but this fails to apply for me :(

I have merged everything into my for-linus which will be sent to him. Or you can
send later and we can get this into fixes

-- 
~Vinod

> 
> Changes since v1:
> 
> - Don't needlessly replace spin_lock by spin_lock_irqsave in IRQ handlers
> 
> Cc: Vinod Koul <vinod.koul@intel.com>
> 
> Laurent Pinchart (6):
>   dmaengine: rcar-dmac: Fix uninitialized variable usage
>   dmaengine: rcar-dmac: Fix spinlock issues in interrupt
>   dmaengine: rcar-dmac: Fix oops due to unintialized list in error ISR
>   dmaengine: rcar-dmac: Allocate hardware descriptors with DMAC device
>   dmaengine: rcar-dmac: Work around descriptor mode IOMMU errata
>   dmaengine: rcar-dmac: Disable channel 0 when using IOMMU
> 
>  drivers/dma/sh/rcar-dmac.c | 137 ++++++++++++++++++++++++++-------------------
>  1 file changed, 80 insertions(+), 57 deletions(-)
> 
> -- 
> Regards,
> 
> Laurent Pinchart
> 
> --
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-- 

Re: [PATCH v2 0/6] Renesas R-Car DMAC fixes

[Laurent Pinchart]

Hi Vinod,

On Thursday 12 February 2015 14:59:36 Vinod Koul wrote:
> On Fri, Jan 30, 2015 at 02:00:07AM +0200, Laurent Pinchart wrote:
> > Hello,
> > 
> > Here are a couple of fixes for the rcar-dmac driver. They're based on the
> > next branch of the dmaengine tree.
> > 
> > The first four patches fix driver bugs, while the last two work around two
> > hardware issues. Patch 5 works around a documented errata, while patch 6
> > handles a data corruption issue that was noticed during test but not yet
> > confirmed to be a hardware bug by Renesas. When more information about the
> > issue will be available a better fix could possibly be developed.
> > 
> > The patches are available at
> > 
> > 	git://linuxtv.org/pinchartl/fbdev.git dma/upstream
> > 
> > Vinod, is there still time for a v3.20 pull request ?
> 
> Since this is fixes I was trying to merge them before I send to Linus in
> next few days, but this fails to apply for me :(
> 
> I have merged everything into my for-linus which will be sent to him. Or you
> can send later and we can get this into fixes

I've rebased my branch on your for-linus branch and pushed the result to

	git://linuxtv.org/pinchartl/fbdev.git dma/upstream

> > Changes since v1:
> > 
> > - Don't needlessly replace spin_lock by spin_lock_irqsave in IRQ handlers
> > 
> > Cc: Vinod Koul <vinod.koul@intel.com>
> > 
> > Laurent Pinchart (6):
> >   dmaengine: rcar-dmac: Fix uninitialized variable usage
> >   dmaengine: rcar-dmac: Fix spinlock issues in interrupt
> >   dmaengine: rcar-dmac: Fix oops due to unintialized list in error ISR
> >   dmaengine: rcar-dmac: Allocate hardware descriptors with DMAC device
> >   dmaengine: rcar-dmac: Work around descriptor mode IOMMU errata
> >   dmaengine: rcar-dmac: Disable channel 0 when using IOMMU
> >  
> >  drivers/dma/sh/rcar-dmac.c | 137 +++++++++++++++++++++++-----------------
> >  1 file changed, 80 insertions(+), 57 deletions(-)

-- 
Regards,

Laurent Pinchart

Re: [PATCH v2 0/6] Renesas R-Car DMAC fixes

[Vinod Koul]

On Fri, Feb 13, 2015 at 04:51:01AM +0200, Laurent Pinchart wrote:
> Hi Vinod,
> 
> On Thursday 12 February 2015 14:59:36 Vinod Koul wrote:
> > On Fri, Jan 30, 2015 at 02:00:07AM +0200, Laurent Pinchart wrote:
> > > Hello,
> > > 
> > > Here are a couple of fixes for the rcar-dmac driver. They're based on the
> > > next branch of the dmaengine tree.
> > > 
> > > The first four patches fix driver bugs, while the last two work around two
> > > hardware issues. Patch 5 works around a documented errata, while patch 6
> > > handles a data corruption issue that was noticed during test but not yet
> > > confirmed to be a hardware bug by Renesas. When more information about the
> > > issue will be available a better fix could possibly be developed.
> > > 
> > > The patches are available at
> > > 
> > > 	git://linuxtv.org/pinchartl/fbdev.git dma/upstream
> > > 
> > > Vinod, is there still time for a v3.20 pull request ?
> > 
> > Since this is fixes I was trying to merge them before I send to Linus in
> > next few days, but this fails to apply for me :(
> > 
> > I have merged everything into my for-linus which will be sent to him. Or you
> > can send later and we can get this into fixes
> 
> I've rebased my branch on your for-linus branch and pushed the result to
> 
> 	git://linuxtv.org/pinchartl/fbdev.git dma/upstream
Since I had to modify my branch, i ended up cherrypicking. So all these are
in my queue now.

Thanks

-- 
~Vinod